Tag Archives: evolution

Humans are also an evolutionary cause

I am not saying this is good, but interesting that a 90% population decrease might be enough to drive this change: Harvest and poaching of wildlife have increased as the human population and our technology have grown. These pressures now … Continue reading

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Antagonistic coevolution

From David Buss’ “When Men Behave Badly: The Hidden Roots of Sexual Deception, Harassment, and Assault“: Consider a spider from the family Pisaura mirabilis. To attract a female, the male must capture an insect to offer as a nuptial gift, an arduous … Continue reading

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Mind blowing thought about DNA

In an interview of Sean B. Carroll, on Sean Carroll’s (not the same person) Mindscape, I learned a lot more about evolution and DNA. And this: From a single human couple, there are 70,000,000,000,000 unique possible offspring. In the time … Continue reading

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Evolution

Heather E. Heying has written a great thread on evolution and shared traits: We were never orangutans. But we were—and still are—apes. As are orangutans. […] We are also fish. This does not mean that we are clownfish or eels … Continue reading

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Convergent evolution, or; how Nature loves to look at crabs

Convergent evolution is when different species evolve similar features independently. Carcinisation is a specific example of convergent evolution, where crustaceans have evolved into crab-like forms. This has happened at least 6 times; king crabs porcelain crabs the hairy stone crab … Continue reading

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It’s the legs that are long

A giraffe has a very long neck, but it is in fact the legs that are the most elongated. Nevertheless, I had not seen how a giraffe eats grass, but it is clearly not the easiest thing to do:

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Orgel’s Second Rule

Evolution is cleverer than you are— attributed to Leslie Orgel To quote from wikipedia, Orgel’s second rule tells us that the process of natural selection is not itself intelligent, clever or purposeful but that the products of evolution are ingenious. … Continue reading

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Good News, Everyone!

“Good news, everyone. Tomorrow you’ll be making a delivery to Ebola 9, the virus planet.” — Farnsworth in “Futurama” It appears that bacteria not only develop resistance to antibiotics but also to handwash alcohols (behind paywall but the DOI 10.1126/scitranslmed.aar6115 can … Continue reading

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